An element x has the following isotopic composition

Asked by admin @ 25/08/2021 in Chemistry viewed by 345 People

An element X has the following isotopic composition X^200:90% X^199:8% X^202:2.0%.The weighted average atomic mass of the naturally occurring element X is closest to

Answered by admin @ 25/08/2021

The weighted Average atomic mass of element [x]
=0.9(200)+0.08(199)+0.02(202)
=180+15.92+4.04
=199.96amu
≈200 amu

The weighted average atomic mass of the naturally occurring element X is closest to 200 amu

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